Paeonia Officinalis is a hardy perennial plant, that has huge bowl shaped flowers and open in late Spring or early Summer. There are single and double-flowered forms that most of them are fragrant. Doubles last longer than singles.
Germination Temperature (°F)
Water when the weather is dry. They require sufficient moisture when they are in active growth. In Winter they do not tolerate wet soil.
Fertilize in Spring.
Sow and just cover seeds with compost. Do not cover seed tray and keep it in light to germinate. Not all seeds will germinate at once.
The best method of propagating is by layers in Autumn or Spring. Can also be increased by seed sown in Spring.
Paeonia likes moisture-retentive, well drained nutritious soil, in sun or partial shade, but try to avoid a situation where early morning sun will shine on the plants. It dislikes root disturbance and sometimes take a year or so to get fully established after a move.
Deadhead faded blooms and cut back to ground level in Autumn.
Paeonia makes handsome cut flowers. Cut them as soon as the blooms begin to open and keep them in a dry cool place for 24 hours before putting them in a tall vase well-filled with water.
Early Autumn is the best time for planting, just covering the crowns with soil. If Paeonia is planted too deep, its crown often fails to flower. The buds on the crowns must not be more than 3 cms (1 inch) below the soil surface. Protect the plant in the first Winter after planting, with a thick mulch.
Paeonia is best placed in isolation singly or massed in mixed or perennial borders.
Moderately alkaline to acid, deep, rich soil.
All parts of the oleander (Nerium oleander), a beautiful Mediterranean-native flowering shrub, are poisonous. Ingesting oleander leaves can cause gastrointestinal, cardiac, and central nervous system problems and possible death.